The OMB-DAQSCAN-2000 Series
of Ethernet-based data acquisition
system components provides
analog, digital and frequency I/O
capability for Ethernet-based test
systems. All OMB-DAQSCAN-2000 models
are packaged in a 1U high-full rack
package and include a rack-mount
kit that can attach to either the front
or the rear of the enclosure. Multiple
OMB-DAQSCAN models can be
combined in the same system and
synchronized using a simple SYNC
connection between units. All I/O i
s accessed via female DB37
connectors located at the rear of
the unit, making cabling easy from
the OMB-DAQSCAN-2000 to your
device-under-test.

Four models in the
OMB-DAQSCAN-2000 Series
are available, ranging from the
OMB-DAQSCAN-2002 which offers
digital/frequency I/O, to the full-featured
OMB-DAQSCAN-2001,
which includes 16 analog inputs,
4 analog outputs, 40 digital I/O,
4 frequency inputs and 2 timer
outputs.
The OMB-DAQSCAN-2000 Series
includes comprehensive drivers for
all popular Windows-based
environments, including Visual
Basic, C/C++, ActiveX/COM,
LabVIEW, MATLAB, and DASYLab.
Also included with the
OMB-DAQSCAN-2000 Series
is DaqView, an interactive
spreadsheet-style application that
is ideal for verifying signal
connections during system design.
The compact 1U high 19” rack
packaging of the OMB-DAQSCAN-2000
make it a compact component
for rack-based systems. In addition
to the built-in I/O provided by the
OMB-DAQSCAN-2000 Series, a
wide variety of signal conditioning
and expansion options are
available.
Below are some sample systems
that can be derived from the
OMB-DAQSCAN-2000 along
with OMB-DBK options.

High Channel Count
Thermocouple Measurements
When combined with the OMB-DBK90 thermocouple
input module, the OMB-DAQSCAN-2000 Series can
measure up to 896 channels of T/C input. In the
example system to the right, any T/C type can be
installed into any channel using standard mini T/C
connectors. Each 56-channel OMB-DBK90 option
consumes 2U of rack space and can be mounted
on the front or rear of the rack chassis. Built-in cold
junction compensation coupled with T/C conversion
algorithms built into the software make temperature
measurements easy. Thermocouples are measured
at 1 ms/channel in a system based on the
OMB-DBK90.

High-Isolation Voltage
and Thermocouple Measurements
The OMB-DAQSCAN can be combined with the
OMB-DBK207/CJC options to create an isolated
system capable of measuring up to 256 channels
of voltage, thermocouple, RTD and strain gage
inputs. All input channels can be scanned up to
200 kHz and are isolated by 500 V from other
channels and from system common. Any
combination of input signals is possible by
selecting the appropriate OM5 signal conditioning
module for the OMB-DBK207/CJC.
OMB-DBK207/CJCs can be mounted at the
front or rear of the rack. They attach to the
OMB-DAQSCAN via a simple OMB-CA-37-10 cable.

Isolated Digital I/O System
When the OMB-DAQSCAN-2002 is
combined with the OMB-DBK208 options,
up to 256 channels of isolated digital I/O
are possible, capable of controlling AC
or DC voltages up to 250 V or sensing
the presence of AC or DC voltages.
All channels are isolated from one another
and from the system by up to 500 V. Inputs
can be scanned in 16-bit increments at
speeds up to 200 Kreadings/s.
The OMB-DBK208 can be mounted
at the front or rear of the rack.

High-Speed Voltage
Measurement System
The OMB-DAQSCAN-2005 can be
combined with OMB-DBK85 16-channel
voltage input modules to build a 5
µs/channel voltage measurement system
with up to 256 channels. All inputs can
have a different software programmable
input range, from 156 mV FS to 10 V FS,
programmable on a per-channel basis.
The 16 BNC inputs on the OMB-DBK85
can be accessed from either the front or
the rear of a rack system.

Multifunction I/O System
All of the foregoing capabilities can be
combined into a single system using
one OMB-DAQSCAN-2001 as the
system centerpiece.